It's an icon of a computer screen that has been reduced to a small version of a computer monitor. It is a rectangle with hard corners sitting on a flat rectangle with a little rectangle in the center. Inside the bigger rectangle appears to be a three dimensional box.
This Switch Host icon is made in flat color style
. This format was developed by Icons8 designer team and became immensely popular for use in web and mobile applications. Feel free to download this icon in PNG format for free, or unlock other formats for $5. Unlike other icon packs that have merely hundreds of icons, this monster icon pack contains 5,900 icons, all in the same style and quality.